GB826017A - Improvements in or relating to circuit arrangements including reflex klystrons and reflex klystrons for use therein - Google Patents

Improvements in or relating to circuit arrangements including reflex klystrons and reflex klystrons for use therein

Info

Publication number
GB826017A
GB826017A GB437756A GB437756A GB826017A GB 826017 A GB826017 A GB 826017A GB 437756 A GB437756 A GB 437756A GB 437756 A GB437756 A GB 437756A GB 826017 A GB826017 A GB 826017A
Authority
GB
United Kingdom
Prior art keywords
resonator
space
reflector
diameter
feb
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB437756A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken AG
Original Assignee
Telefunken AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefunken AG filed Critical Telefunken AG
Publication of GB826017A publication Critical patent/GB826017A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/22—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone
    • H01J25/24—Reflex klystrons, i.e. tubes having one or more resonators, with a single reflection of the electron stream, and in which the stream is modulated mainly by velocity in the modulator zone in which the electron stream is in the axis of the resonator or resonators and is pencil-like before reflection

Landscapes

  • Particle Accelerators (AREA)
  • Microwave Tubes (AREA)

Abstract

826,017. Velocity-modulated tubes. TELEFUNKEN G.m.b.H. Feb. 13, 1956 [Feb. 12, 1955], No. 4377/56. Class 39(1). In a reflex klystron the collector 6, 8 closely surrounds the beam entering the resonator so that for a beam perveance such that the ratio of the diameters of the beam leaving and entering the reflectory space is from 1À5 : 1 up to 3 : 1, substantially all the electrons strike the collector. This avoids hysteresis due to multiple electron transits in the resonator the transit time in the reflector space is 1À5#, 3À5# or 5À5# radians. 6 and 8 may be separate electrodes and the aperture in 6 or 8 surrounds the beam as closely as possible. Only the electrons in the centre of the beam can return to the cathode space and to minimise this, the cathode can produce a beam with a smaller current density at the centre, e.g. an annular beam. The beam spread on reflection is due to space charge repulsion which is greater than the focusing effect of the reflector. The diameter of the beam on entry to the reflector space is 1/10 the diameter of the resonator, or less, to decrease the capacitive loading of the resonator by the electron beam, and the tube is tuned electronically. The height of the cylindrical wall of the reflector is “ its diameter.
GB437756A 1955-02-12 1956-02-13 Improvements in or relating to circuit arrangements including reflex klystrons and reflex klystrons for use therein Expired GB826017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET10563A DE1082986B (en) 1955-02-12 1955-02-12 Reflection klystron

Publications (1)

Publication Number Publication Date
GB826017A true GB826017A (en) 1959-12-23

Family

ID=7546424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB437756A Expired GB826017A (en) 1955-02-12 1956-02-13 Improvements in or relating to circuit arrangements including reflex klystrons and reflex klystrons for use therein

Country Status (2)

Country Link
DE (1) DE1082986B (en)
GB (1) GB826017A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE23479E (en) * 1938-06-18 1952-04-08 Electrical translating system
US2411913A (en) * 1942-09-21 1946-12-03 Bell Telephone Labor Inc Electron discharge device
FR1054929A (en) * 1951-02-28 1954-02-15

Also Published As

Publication number Publication date
DE1082986B (en) 1960-06-09

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